Re: How metering is calculated...
Re: How metering is calculated...
- Subject: Re: How metering is calculated...
- From: James McCartney <email@hidden>
- Date: Tue, 2 Mar 2010 11:20:12 -0800
On Mar 2, 2010, at 9:32 AM, Grant Robinson wrote:
> So, off-the-record, you are saying that you are doing buffer-to-buffer
The original poster's code seemed to indicate he was doing it per buffer. We're not doing that, its continuous.
> reporting of RMS gain with attack/decay smoothing? Does the
> attack/decay smoothing require values from previous buffer
> calcuations,
That is always the case for an IIR filter, yes.
> or can it all be done on-demand?
Brian Willoughby assumes that attack equals decay:
>>> A low-frequency square wave is still going to result in a slow, 300 ms rise from 0 to the RMS value of the wave, then another 300 ms fall.
That would not reflect what we are doing.
This kind of thing is pretty straightforward, we're not doing anything really special. There are other groups whose topic is signal processing.
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